US1212940A - Type-writing machine. - Google Patents

Description

'F. A. HART.

TYPE WRITING MACHI NE. APPLICATIQN FILED NOV. 3. 1914.

Patented Jan.16,191 7.

2 SHEETS-SHEET 1.

' 6/ INVEN1LOR:

ATTO EY- WITN ESSESI Wm/d y M UNITED srnrns PATENT orrrcn.

IlllEtElDERICK A. HART, 6F NEWARK, NEW JERSEY, ASSIGNGR 1'0 UNDERWUOD COM- PUTING MACHINE COMPANY. 01 NEW YORK, N. Y., A COBFGBATION OF NEW YORK.

'rrrn wnirmo MACHINE. y 1

Patented Jan. 16, 1917.

Application filed November 9, 1914. Serial No. 870,972.

7 Hon tion.

This invention relates to a web or tally strip supporting and feeding inccliianism adapted for use with typewriting machines. 'An object of the invention to provide improved means for feeding a tally strip or other webfrom a supply roll over the machine platen and onto a storage or Windmg roll, the web-feeding mechanism being "Pemted by e linespacing mechanism f the machine for feeding the telly strip a single linespace distance each operation of the line-spacing mechanism whether the latter is set for single, dounle, or Wider line spacing. Provision is also made for maintaining the line spacings of the web uniform regardless of the increasing iameter of the winding roll.

The invention further provides means for automatically advancing the telly strip aline-space distance each time a work-sheet is removed from. the machine and replaced by a new sheet, so, that a blank portion of the tally strip will be presented to receive lever. The tally strip is the record of the first line written on the new work-sheet without requir ng the oper-- ator to operate the line spacmg mechanism a fter the last line of a sheet has been written.

The tally strip mechanism may be mount ed on the typewriter platen frame, and coinprises a support for a supply roll from which .the tally strip extends around the platen and to a pair of feed rolls, one of which is mounted o'ri'a drive shaft extending parallel with the platen and connected through suitable gearing to be rotated by the line-space drawn forward over the platen by said rolls, and after passing between the rolls is woundon a winding spindle orl mandrel to form a record roll.

The winding spindle is driven by the said drive shaft through gearing comprising a slip connection, permitting the speed of the winding s indle to accommodate itself to.

the gra-dua ly increasing size of the storage roll. The winding spindle may at any t1 me be withdrawn in a longitudinal direction moved from the record roll, leavingthe latter free to besevered, by means of a. tearing blade, from the remainder of the web, and removed from 'tliemachine. Tension springs bearing on the supply roll serve not only to prcvent slack in the tally strip, but also to prevent the tally strip from being fed forward by the platen more rapidly than it is fed, by the rally strip feed rolls. The usual key for thmwing the main feed rolls oil the platen is connected through a pawl-andratchct mechanism, to operate the drive shaft for the telly strip rolls, and advance the tally strip whenever the key is operated to perm t a completed woik-sheet to he *d replaced by a new one.

Other features inafter appear.

In the accompanying drawings, Figure l is a perspective view of the invention applied to an Underwood typewriting ma chine. Fim 2 is an end elevation, viewed from the left-hand end of the platen, parts being broken away. and parts shown in section. .Dig. 3 is a sectional perspective View showing the telly strip rolls, the winding spindle being shown withdrawn from the storage roll. Fig. a is a sectional detail showing the slip connections between the inding spindle and its driving means. l ig. an elevation view as seen from the 0 1s right-hand end of the platen. Fig. 6 is a detail view showing the eccentric mounting for one of the feed rolls. Fig. 7 is a part sectional view of the winding spindlcand showing the slipconnection between said spindle and its driving pinion. Fig. 8 is a rear perspective view showing the removable spindle on which the supply roll is mounted.

The typewriterplaten l is mounted on an axle 2 journaled in the platenframe, comprising ends 3 and 4 connected byan inclined paper table 5 at the intake side of the platen. Types 6, operated by the usual mechanism, strike againstthe work-sheet at loo the front face of the platen. The platen may be rotated by hand wheels 7 or by the usual line-space mechanism comprising a line space'ratchet Wheel S'fixed to the platen axle and driven by a pawl 9 pivoted at 10 to the plunger or driver 11, actuated by the line-space lever 12.. The driver and pawl are returned by a spring 13 connected at. its

and advantages will here and 17 which l " end brackets 26 and 27,

ends to the driver and platen frame respectively. The pawl 9 is held off the ratchet wheel during the initial movement of the driver 11 by means of a ledge 14 carried by an adjusting lever 15, which may be set to permit the pawl 9 to engage the ratchet wheel earlier or later in the throw of the plunger 11 and thereby cause the ratchet wheel to be rotated one, two, or more line-spaces, at each operation of the linespace lever. Front and rear feed rolls 1G r against the under face of the platen for feeding the work-sheets forwardly, may be thrown off the platen by means of a key 18, on a lever 18, connected through a link 19 to a rock shaft 20, having cams or flats 21 to engage lugs 22 on levers 23, fulcrumed on a rod 24, said 1evers Supporting shafts 25 on which the feed rolls 16 and 17 are mounted. By depressing the key 18, the feed rolls are thrown off the platen, as indicated in Fig. 5. The

parts thus far described are those common to the commercial Underwood typewritmg machine.

i The tally strip mechanism is removably mounted on the platen frame by means of mounted respectively on the frame ends 3 and 4:. The tally strip supply roll 28 is mounted on a rod 29 extending parallel with the platen, and is removably mounted on the brackets 26 and 27, the latter provided with openings 30 to receive and form bearings for the ends of said rod. The rod has portions cut away to provide necks 31 to enter the restricted portions 32 of the openings '30, and the rod is held against accidental displacement by a spring 33 which, as shown in Fig. 5, bears against the fiat face of a neck 31, and holds the rod 29 against rotary movement into a position to pass through the restricted portions 32 of the openings. The rod, however, may be readily removed by first rotating it through a quarter turn by means of the km ed thumb pice 34. The supply roll 28 is held against longitudinal displacement by means of a pair of leaf springs 35 which further serve as tensioning means for the tally strip, as will more fully appear hereinaftcr.

The tally strip extends from the supply roll 28 downwardly around the platen and up to and between a pair of feed rolls 3t) and 37, which form a feeding couple to draw the web forward over the platen. From the feeding couple the strip extends rearwardly to a winding spindle 38 on which it is wound to form a record roll 39. The rear feed roll 37 is mounted on a drive shaft 40, which is journaled near its ends in the brackets 26 and 27. Intermeshing gears 41 and 42, connected respectively to the rolls 36 and 37, cause both said rolls to be positively driven at the same peripheral speed when the drive shaft is rotated. These feed rolls are provided with a facing of rubber or other suitable compressible friction material. The drive shaft 40 may be rotated to feed the tally strip forwardly, by means of a gear train connecting said shaft to the line-space mechanism. Said train comprises'a pinion 43 on the shaft 40, and running in' mesh with a pinion 41 on a stud shaft 45 mounted in the bracket 26. Connected to rotate with the pinion 14 is a ratchet wheel 46'driven by a pawl 47 pivoted to a rock arm 18 journaled on the shaft 45. Said rock arm 48 is connected through a link 4!) to the driver 11, so that each time the line-space lever 12 is operated, the ratchet wheel lb is rotated the angular distance between two adjacent teeth thereon. said rotation being imparted to the tally strip feed rolls through the gearing just described. and the tally strip thus fed forwardly a line-space distance It will be noted that the extent of rotation of the ratchet wheel 46 is the same for each line space operation, regardless of whether the lever 15 is set for sin le, double or wider line-spacing. The ta ly strip may pass around the platen at a position between the main feed rolls 115 and 17, so that the pres sure of said rolls will not be applied on the tally strip. The platen has a tendency to feed the tally strip forwardly faster than it is fed by the feeding couple '36, 37, particularly when the line-spacing mechanism is set for double or triple line-spacing. The tension springs 35, however, exert a braking aetion on the supply roll 28 suflicient to take the tally strip out of the control of the platen. In other words. the pull of the platen on the tally strip is insullicient to rotate the roll 28 against the holding power of the springs 35, so thatthe. web is only fed forward at the peripheral speed of the rolls 36. 37. After passing between the feed rolls 36 and 37. the tally strip is wound onto the. receiving spindle or mandrel 38 driven from the shaft 4) through a train of gears 50, 51. The gear 5] may be. connected to the drive shaft 40 through the intermediary of a sleeve loose on the shaft and provided with an extension 53 forming a pair of clamping jaws surrounding the shaft and said jaws may he caused to grip said shaft by means of a set serew 51, thereby connectiug the gear 51 to rotatewith said shaft. The feed rolls 3 and 257 and the spindle 38 are mounted in a frame comprising end plates or brackets 55 rigidly connected as by means of a bar (32 which serves as a tearing blade. and a rod 62" (Fig. ill. Said frame is slidably mounted on the drive shaft 40 and the rod 29. so that by loosening the set screw 54, the frame may be adjusted to bring the tally strip and its supporting rolls to any position along the platen, and then secured in adjusted position by setting up 3 the screw 5%. The mandrel 38 is preferably tubular, and is split by means of oppositely disposed slots 56 extending longitudinally thereof, said slots providing means for securing the end of the tally strip to the man? drel, and also permitting themandrel to be withdrawn longitudinally from the record roll as indicated in Fig. Byrefercnce to Fig. 7. bracket is formed with a tubular extension 57, in which the mandrel 38 is both slidably and rotatably supported. Said extension also forms a bearing for ahub 58 on the gear wheel 50.

A. slip connection between the gear and the mandrel 38 is provided by means of hollow bearing blocks 59 containing leather or other suitable friction material, said blocks mounted in openings in the hub 58 and placed under a yielding radial pressure causing the frictional material to bear on the mandrel 38. The pressure is produced by a U-shapcd leaf spring 60 (Fig. *1),

- cured by a screw (31 to the hub 58, and having its ends bearing onthe blocks 59. The

mandrel 38 is of sufiicient size to always wind the tally strip as fast itist'ed forward by the feed rolls 3G, 37, and the slip connection justdescribed, permits the speed of the mandrel to be reduced to compensate for the increasing size of the record roll..

in other words, the peripheral. speed of the record roll on the mandrel is always the same as that of the feed rolls 36, 37.

To connect the end of the tally strip to the mandrel 38, the latter may be turned to bring the slots 56 in alinement with the forwardend of the tally strip as the latter is advanced from the feed rolls 36, 37. Said end is then introduced into the slot 56 and the mandrel rotated a short distance by,

hand. When it is desired to remove the record roll that has been wound on the mandrel, the latter is withdraw-'11 longitudinally to the'position shown in Fig. 3 thus entirely disconnecting it from the roll which may the .movement of the mandrelto the right, by being brought up against the hub 58,-in which position, the right-hand end of the mandrelhas a bearing in the right-hand bracket The gear 50 is held against endwise displacement by the left-handbracket' 55 hearing against one end of the hub 58. and by a. disk 66 which lies against thelettdiand it will be seen that the left-hand face of the gear Wheel 51, said disk extend ing to the outer periphery formed by the teeth of the gear 51-, so that it always overlaps the teeth of the gear 50. The disk 60' may be formed integral with the sleeve 52 and form a connecting means between said sleeve and-the gearfil.

The tally strip feed rolls 36. and 37 may be separated to permit the tally strip to be readily inserted or removed by the following arrangement: The roll 36 is loosely mounted on a shaft 67 having eccentric or offset ends journaled in the brackets 55. To the righthand end'of the shaft (37. is secured a-hand lever 68, which may be thrown forwardly to the Fig. 6 position, thus rotating the shaft 67 on its eccentric bearings. and separating the roll 36 from the roll 37. 'The eccentric movement of the shaft 67 is insufiicient to; disconnect the gears 41. &2, which preferably remain permanently in mesh. When the lever 68 is thrown rearwardly, the roll 36 is thrown into engagement with the roll 37. A spring 69 serves to hold the lever 68 in either position and when the rolls are together. provides suitable pressure between the contact surfaces of the rolls.

In practice. the tally strip is generally used to receive the carbon record of items printed on the original bills or work-sheets, which are placed on the platen in position to overlap the tally strip, a carbon strip 70 being interposed between the original and the tally strip. Thecarbon-TO is usuallya continuous strip fed with a the tally strip from the supply roll 28. but it need not-he passed between the feed rolls 36, 3'? as it is carried along by the tally strip and overlying Work-sheet. The reason for providing these overlapping portions upon the original bills is to enable the rolls to press the bills against the platen to travel therewith, at a greater speed than thatot the tally. strip which intervenes between the original bill and the platen. The rolls referred to must not therefore press the outer sheet against the slowly moving tally strip. The control of a Wide sheet by means of rolls engaging its overlapping portions is disclosed in'the patents to Kunath 817,924, and McCormack 975,264. a

V. In order to place the supply roll 28 in position, therod 29 is removed and the roll 28 comprising the tally strip and carbon' strip, slipped endwise thereon and then replaced (see Fig. 8) with the roll between the tension springs 35. The free ends of the strips are thencarried downwardly around the platen, and the end of the tally strip drawn upwardly and fed between the separated feed rolls 36. 37, and connected to the mandrel 38 as before described. The lever 68 is then thrown backwardly, to grip the tally strip between the feed rolls, so that the tally strip and its carbon may be'fed for- .mechanlsm to feed ward as the line-space lever is operated to feed forward the original work-sheet which is placed on the machine when the tally strip is in position. When the entries on the worksheet have been completed, the key 18 is depressed to throw the main feed rolls off and permit the sheet to be removed and a new one substituted.

In order that the tally strip may be advanced when the last line on an original sheet has been written, and before the succeeding sheet has been written upon, mechanism is provided for operating the feed rolls 36, 37, by the key 18. Such mechanism comprises a ratchet wheel 71 fixed to the righthand end of the drive shaft 40 and operated by a pawl 7 2 pivoted on a rock arm 7 3 journaled on the drive shaft 40, said rock arm connected through a link 74 to an arm 7 5 of the key lever 18, so that whenever the key 18 is depressed, the pawl 72 is operated to rotate the drive shaft and feed the tally strip forward.

Although the invention has been particularly described as adapted for use in connection with a tally strip, it will be understood that it may also be adapted for use with continuous strips or webs designed for other purposes.

ariations may be resorted to within the scope of the invention, and portions of the improvements may be used withoutvothers.

Having thus described my invention, I claim:

1. The combination with a platen and a line-space mechanism for rotating the platen, said mechanism comprising adjusting means for varying the extent the platen is rotated by an operation of the line-space mechanism, of means for feeding a strip or web over the rotatablev printing surface of the platen, and means to prevent the web from being fed by the platen, said webfecding means operable by said line-space the web forwardly the same distance at each operation of the linespace mechanism regardless of the distance the platen is rotated by said operation.

:2. The combination with a platen and line-space mechanism for rotating the platen, said mechanism comprising adjusting means for regulating the distance the platen is rotated at each line-space operation, of means for feeding a web or strip over the platen, comprising feed rolls between which the web extends after passing over the platen, earing between said feed rolls and the line-space mechanism operable to rotate the feed rolls to advance the web the same extent at each line-space operation imlependently of the extent of rotation of the. platen, and means at the introductory side of the platen for placing tension on said web suflicient to prevent it from being fed forwardly by theplaten, so that the web is advanced at the peripheral speed of the said feed rolls.

3. In a typewriting machine, the combination with a roller platen and line-space mechanism for rotating the platen, of means for feeding a web or strip over the platen, said means comprising a web-feeding device to'draw the web over the platen, a tension device for applying tension to the web at the introductory side of the )laten sufficient to prevent the web from cing drawn orwardly by the platen as the latter rotates, and means operated by the line-space mechanism to actuate said webfeeding device.

t. In a typewriting machine, the combination with a platen and a line-space mechanism for imparting step-by-step rotations to the platen, of a tally strip mechanism comprising a support for a supply roll, a feeding roll couple to which the web extends from the supply roll after passing around the platen, a winding spool or spindle on which the web wound after passing between the. (rolls of said couple, a gear train between said couple and the line-space mechanism, for driving said couple at each line-space operation, gearing for rotating the winding spindle when said couple is driven, to wind the strip as it is advanced by said couple, said gearing comprising a slip connection, and a tension device applied to said supply roll to retard its rotation and place tension on the web suilicicnt to prevent it from being drawn forwardly with the platen at a greater speed than it is advanced by said couple.

The combination with a rotary platen. platen feed rolls for feeding a work-sheet over the platen, and means for rotating the platen, of means for feeding a web or strip which passes around the platen between the platen and work-sheet. said means eomprising a winding spool to receive the web as it is fed over the platen. means to rotate said winding spool. and means at the introductory side of the platen to place tension on said web sufficient to prevent the web from being advanced by the platen.

6. The combination with a platen frame and a platen, of tally strip mechanism comprising a drive shaft extending parallel with the platen, means forming a support for a tally strip supply roll, a winding spindle, said support and winding spindle adj ustablc along said drive shaft to bring the tally strip to different positions longitudinally of the platen. means for feeding the tally strip over the platen and winding it on said winding spindle. and means for placing tensim. on the tally strip between the supply roll and the platen suilieient to prevent said strip from being carried forwardly by the rotation of the platen.

T. In a typewriting machine, nation with a platen the combiand a platen frame, of

lit)

nsraeeo 2i brackets secured to the platen frame ends, line-space mechanism and the tally strip said brackets provided with recesses having feeding means for operating the latter when restricted entrances, each. recess forming a the line-space mechanism is operated, said journal bearing, a rod forming a support tally strip positioned to extend between the for a tally strip roli, and having flattened platen and the worlesheetsthereon, and a portions movable through said entrances, tension device to place tension on the tally to permit said rod to he placed in its bear:-

p at the introductory side of the platen, ings, said rod, when. rotated in it's bearings said tension being sufficient to prevent the to present said flattened portions across said tally strip from being fed forwardly by the ,0 entrances, being held against removal, and platen and work-sheets.

' a spring to bear against a flattened or re- Ii. The combination with a roller platen duced portion of the rod to hold it agains and platen feed rolls for feeding a workaccidental rotation into a. jaosition to be re llgef, vgy th l t f a k connected t moved, said feed rolls for throwing them off the 8. In a typewriting machine, the cone platen, means to support a tally strip in bination with a. platen and a linespace position to extend around the platen bemechanism for rotating the platen, of tally twe n th l tt d idv k h t, to b strip mechanism comprising means to snp-- fed over the platen, said tally strip-sup port a tally strip extending around the portingmeans adjustable in a direction par- 30 platen over the rotary printing surface allel with the platen axis to bring the tally thereof, and feed said strip forwardly step strip to different positions along the platen by step as the line-space mechanism is operand overlying work-sheet, tally strip feedated, means for centroiling the advance of ing' mechanism, means to prevent the tally the tally strip line by line independently of strip from being drawn forward by the 35 the distance through which the platen is platen, and gearing between the said key 9 rotated at each operation of its line-space. and tally strip feeding mechanism for opermechanism, and means operated automatiating thelatter when said key is operated. cally to advance the tally strip each time the 12. The combination with a roller platen machine is manipulated to remove a workand platen feed rolls thereon for feeding 3.0 sheet and replace it by a new work-sheet. work-pieces over the platen, of a line-space 9. In a typewriting machine, the coinmechanism located at one end of the platen bination with a platen, line-space mechafor rotating the platen, a key at the opponisln for imparting step-by-step rotations to site end of the platen for throwing the said I the platen, platen feed rolls to feed workfeed rolls off the platen, a drive shaft ex 35 sheets over the platen, and a key for throwtending parallel, with and substantially coin}; the feed rolls of? the platen to permit extensive longitudinally with the platen, the removal of'a worksheet, of means for driving connections between the linespace feeding a tally strip around the platen bemechanism and the adjacent end of the drive 7 tween the latter and the work-sheets. conshaft for rotating the drive shaft by power '40 neetions between said means and said key applied at said end of the drive shaft when for operating said means and advancing the the line-Space mechanism is operated, contally strip when the key is operated, connections between said key and the adjacent nections between the line-space mechanism end of the drive shaft for rotating the drive and the tally strip feeding means for opershaft by power applied at said last-men- 45 ating the latter when the line-space mechationed end thereof when the key is operated, nism "is operated, and means effective at the and means operated by the drive shaft for rotation of theplaten for controllingthe feeding: a tally strip. advance'of the tally strip independently of t llillie combination with a roller platen the distance through which the platen is and platen feed rolls thereon for feeding 5o rotated and inde endentlv of the workworkiieces over the ilaten of a line-s ace sheet overlying the tally strip and being mechanism located at one end of the platen carried around by the platen; ,said feed for rotating the platen, a key at the opposite rolls mounted to run Olll upon portions of end of the platen for throwing the said feed the platen not occupied by the tally strip. rolls rid the platen, a drive shaft extending 1 0. In a typewriting machine, the comparallel with the platen from one end of the bination with a piaten, iinespace 11'1echap aten to the other, driving connections be nism for imparting step-bv-step rotations tween the line-space mechanism and the adto the plat n. platen feed rolls to feed work jacent end of the drive shaft for rotating sheets over the platen. and :1 her for throwthe drive shaft by power applied thereto at 60 ing the feed rolls 0? the platen to permit said adjacent end thereof when the line- 12 the removal of a work-sheet, of meansfor space mechanism is V operated, connections feeding a tally strip, coimections'; b tw n between said shaft and said key for rotating said means and said. kev for operating said the drive shaft by power applied thereto at means a nd advancing the telly strip when the end thereof adjacent the key when the 65 the Key is operated, connections between the latte:- is operated, means to support a tally 1130 strip in position to be fed over the platen, said support adjustable along said drive shaft to bring the tally strip to any desired position longitudinally of the platen, and means operated by said drive shaft for feeding the tally strip forwardly over the platen.

14. In mechanism f0! winding a s1 rip or web, the combination with a winding spindle or mandrel provided with a longitudinal slot or opening to receive and form a holding means for the end of the web or strip wound thereon, of a support in which said mandrel is journaled. said mandrel movable longitudinally in said support to withdraw-it from the roll formed by winding said strip thereon, and thereby permitting the roll to be removed bodily from the mandrel.

15. In a tally strip mechanism. the combination with a feeding roll couple. of a winding spindle or mandrel on which the tally strip is wound after being fed forwardly by said couple. and a gear train connecting said couple and said mandrel for rotating the latter at a speed sutiicient to prevent slack in the stri between the said couple and mandrel. said gear train comprising .a slip connection permitting the Speed of the winding spindle to accommodate itself to the speed at which the web is fed forwardly by said couple.

16. In a tally strip mechanism. the coinbination with feed rolls. of means to drive said feed rolls. a strip or web between said .rolls, a winding spindle on which said web is wound as it is fed between said rolls. driving connections between said feed rolls and said spindle comprising a gear connccted to one of said feed rolls, an intermeshing gear having a hub surrounding said spindle, friction bearing blocks mounted in said hub. and a spring holding said hearing blocks against the said spindle and thereby providing a slip driving connection between the spindle and said feed rolls.

17. The combination with a platen and line-space mechanism for rotating the platen, said mechanism comprising adjusting means for regulating the. distance the platen is rotated at each line-space operation, of means for feeding a web or strip over the platen comprising feed rolls between which the web extends after passing over the platen, and gearing between said feed rolls and the line-space mechanism operable to rotate the feed rolls to advance the web the same extent at each line-space operation independently of the extent of rotation of the platen.

is. In a typcwriting machine, the combination with a revoluble platen and platen feed rolls for feeding work-pieces over the platen, of means to support a supply roll in position to permit a strip or web to extend from said roll around the platen and past the printing line, a feeding roll couple beyond the writing line and between the rolls of which the web extends, a winding spindle or spool on which the web, after passing said feeding roll couple, is wound and forms a winding roll. mechanism to drive said couple and said winding spool and cause said couple to draw the web from the supply roll around the platen, said winding spindle being rotated at a speed sufficient to prevent slack in the web between the said spindle and the feeding roll couple, the means for driving the winding spindle com prising a slip connection to permit the speed of the winding roll to adjust itself to that of the feeding roll couple and prevent excessive strain on the web. and means for. placing a holding tension on the supply roll suflicient to prevent the web from being drawn therefrom by the platen and its feed rolls. and piled between the platen and said feeding roll couple.

19. In a typewriting machine, the com bination with a revoluble platen. platen feed rolls for feeding work-pieces over" the platen. and line-space mechanism for imparting step-by-step rotations to the platen. oi means to support a tally strip supply roll. a tally strip feeding roll couple for advancing a tally strip extending from the supply roll around the platen to said couple. an auxiliary line-space mechanism operated bv the platen line-space mechanism and connected to said feeding roll couple for driving the latter and advancing the tally strip step by step as the line-space mecha-i uisms are operated. a winding spindle on which the strip is wound after leaving the feeding roll couple. a gear train to drive said spindle when the said couple 1S (l1l\( n. said gear train comprising a friction slip connection to regulate the tension of the strip as it is wound on said spindle and permitting automatic ad ustment of the. speed of the spindle relatively to that of the feeding roll couple. and retarding means for the strip at the introductory side of the platen for preventing the strip from being drawn from the supply roll except by a force greater than that exerted thereon by the platen and its feed rolls. whereby the platen and the platen feed rolls areprevented from advancing, the strip and p ling it between the platen and the feeding roll couple. the peripheral advance of thecplaten at each line-space operation being greater than that-of the feeding roll couple. I

20. in a typewriting inachine the coinbination with a platen frame. and a revoluble platen jonrnaled therein. of a drive shaft parallel with the platenand supported on the platen frame, tally strip mechanism comprising a supporting frame adpistable along said drive shaft for adjusting a tally strip to difi'erentpositions along the platen, a tally strip supply roll adjustable with said bination with a platen frame and a revoluble platen journaled therein, of a drive shaft parallel with the platen and supported on the platen frame, tally strip mechanism comprising a supporting frame adjustable along said drive shaft for adjusting a tally strip to different positions along the platen. a tally strip supply roll adjustable with said frame and from which the tally strip ex tends around the ,platen, a winding spindle tending parallel with the carried by said supporting. frame and on which the tallj strip is wound after passing around the platen, driving'c nnections between said drive shaft and spindle for rotating the latter, line space mechanism for rotating the platen, gairing between the line-space mechanism and'said drive shaft for driving the latter when the linerspace mechanism is operated, platen feed rolls. a key for throwing said feed rolls oil the platen, and connections between said key and said drive shaft for rotating the latter.

when said key isoperated.

22. The combination with a platen frame and platen, of supporting brackets mounted on the platen frame ends, a drive shaft extending parallel with the platen and journaled in said brackets, -a tally strip supporting frame, a supporting rod for atally strip supply roll, said rod mounted in said brackets, a feeding roll couple mountedin said tally strip frame, and driving connections between said drive shaft and said couple for driving the latter and thereby feeding over the platen a tally strip extending from said supply roll'arouinil the platen to said coll le, said tally strip frame dinally of i he platen to adjust the tally strip to different"positions along the platen.

223. The combination with a platen frame and platen, of supporting brackets mounted on the platen frame ends, a drive shaft ex platen and joura tally strip support a tally strip said braclo naled in said brackets, mg frame, a supporting rod for supply roll, said rod mounted in ets, a feeding roll couple'mountedin' said tally strip frame, driving connections be tween said drive shaft and said couple for driving the latter and thereby feeding over the platen a tally strip extending from said up between the adjustable longitu supply roll around the platen to said couple, said tally strip frame adjustable longitudinally of the platen to adjust the tally strip to different positionsalong the platen. and leaf-springs carried by the tally strip frame and bearing against the ends of the supply roll to hold the latter against longitudinal displacement and cause it to be adjusted with the tally strip and frame, said springs forming a brake for the supply roll and holding the latter with sufficient power to prevent the tally strip from being fed forward ly by the platen faster than it is drawn forwardly by said couple.

24. The combination with a platen frame and a platen, of brackets mounted on the platen frame ends, a drive shaft extending parallel with the platen and journaled in said brackets, a supporting rod for a supply roll. said rod mounted in said brackets and extending parallel with the platen. a tally strip frame supported on and adjustable along said drive shaft and said rod to adjust a tally strip to different positions along the platen, a feeding-roll couple mounted in said tally strip franngmeans for driving said drive shaft, gearing between said drive shaft and feeding roll couple for driving said couple when the drive shaft is rotated and thereby advancing over the platen the tally strip which extends from the supply roll around the platen to said couple. a windingspindle.

gearing between the drive shaft and said winding spindle for rotating the latter and winding-the tally strip thereon as it is ad vanced by the feeding roll couple. and @leal springs carried by the tallv strip frame and bearingagainst'ends of the supply roll to cause the latter to'be carried with the tally strip frame when the latter is adjusted. said springs also retarding the rotation of the supply roll. and placing tension on the tally strip sufficient to prevent it from being drawn forwardly by the platen and piling platen and said feeding roll couple.

25. In a tally strip mechanism. the combination with a drive shaft. of a feeding roll an eccentrically mountedsupporting shaft on which said second roll is journalech a winding spindle to receive a strip fed be tween said rolls, a lever connected to rotate said eccentric shaft into and out of position to separate said rolls, said lever haying a limited 'mevement in both directions, a spring to hold said lever in either position, intermeshing and remainingm mesh whilesaid rolls-are separated, and gearing between the winding spindle and drive shaft for rotating'said spindle from the drive. shaft pimons carried 'by'said rolls' 26. In a typewriting machine and tally--- strip mechanism therefor, the combi'natidn with a platen, of a supply roll from which a tally strip or web may extend around the platen past the printing line, a winding spindle on which the web is wound in a roll as it is fed beyond the printing line, and a frame in which the supply roll and winding spindle are mounted. said frame being mounted for adjustment lengthwise of the platen to adjust the position of the tally strip along the platen.

27. In a typewriting machine, the combination with a rotatable platen. of line-spacing mechanism to rotate the platen and feed a worksheet thereover. web-feeding mechanism, means operated by the line-spacing mechanism to drive said web-feeding mechanism, and thereby advance a web step by step. a winding spool or spindle on which the web is wound as it is advanced by said web-feeding mechanism. means forming a driving connection between said web-feeding mechanism and winding spool including a slip connection permitting the speed of the winding spool to accommodate itself to the speed at which the web is advanced by its feeding means, said web being supported and guided over the platen so that the web and the work-sheet on the platen may be. held against the platen in superposed relation along the printing line, and means at the introductory side of the platen for placing tension on the web, and thereby taking it out of the direct control of the platen, permitting the work-sheet on the platen to be fed independently of or at a different speed from that of said web.

-2S. In a typewriting machine, the combination with a plateirframe and a revoluble platen journaled therein, of a drive-' shaft parallel with the platen and supported on the platen frame, tally-strip mechanism comprising a supporting frame adjustable along said drive shaft for adjusting the tally strip to different positions along the platen, a tally-strip supply ro'll adjustable with said frame and from which the tally strip extends around the platen, a winding spindle carried by said supporting frame and on which the tally strip is wound after passing around the platen, driving connections between said drive shaft and spindle for rotating the'latter, and means to rotate said drive shaft.

29. In a typewriting machine, the comhination with a platen carriage and a platen thereon, of tally-strip mechanism comprising a frame, a tally-strip supply roll and a tally-strip winding spindle both mounted on said frame in position to supporta tally strip extending from the supply roll around the platen past the printing line to the winding spindle, means for supporting sai frame on the platen carriage, said frame adjustable lengthwise of the platen for ad usting'the tally strip to different positions overlying work-sheet through along the printing line, a drive shaft extending lengthwise of the platen, and means forming a driving connection from said shaft to the winding spindle and adjustable with said spindle lengthwise of the platen.

30. In a typewriting machine, the combination with a platen frame and a revoluble platen thereon, of a paper table at the introductory side of the platen for supporting and guiding work-sheets to the platen, tallystrip mechanism comprising a'supporting frame, a tally-strip supply roll and tallystrip receiving means carried on said frame and so positioned that the tally strip may extend from the supply roll downward in front of the paper table around the platen and upward to said receiving means, the tally strip being spaced from said table to permit the work-sheets to be placed on said table and fed around the platen outside of the tally strip overlying the latter along the printing line, the tally-strip supporting frame being adjustable lengthwise of the platen to bring the tally strip to different positions along the printin line, and means to concomitantly advance t e tally strip and different linespace distances.

31. In a typewriting machine, the combination of a revoluble platen, means to control the line-spacing movements of the platen, means to engage the margin of a wide sheet to hold it against said platen to partake of the line-spacing movements thereof, and controlling means connected with said linespacing means, for effecting, at the operations of said platen, relatively reduced line-space movements of a narrow sheet interposed between the wide sheet, and said platen, whereby the inter osed sheet advances more slowly than sai platen.

32. In a typewriting machine, the combination of a revoluble platen, means to control the line-spacing movements of the platen, means to engage the margin of a wide sheet to hold it against the platen to partake of the line-spacing movements thereof, and controlling means connected with "said line-spacing means, for effecting reduced line'space movements of a narrow sheet interposed between the wide sheet and the platen, the means for line-spacin the said narrow sheet including devices a justable longitudinally of the platen, to permit location of the narrow sheet at a variety of points along the platen.

33.iIn a typewriting machine, the combination of a revoluble platen, means to control the line-spacing moyements" ,the platen, means to engage' :.t lie"marg1mlll a wide sheet to hold it against the platen to partake of the line-spacing movements thereof, and controlling means connected reduced line-space movements of a narrow sheet interposed between the wide sheet hid. the platen, the means-for controlling the interposed sheet comprising a device for holding back said interposed sheet against a tendency of theplaten to advance the same.

34. In a typewriting machine, the combination of a revoluble platen, means to .control. the line-spacing movements of the platen, means to engage the margin of a wide sheet vto hold it against the platen' to partake of the line-spacing movements thereof, and controlling meansconnected with said line-spacing means, for effecting reduced line-space movements of a narrow sheetinterposed between the w1de sheet and the platen, the means for conbination of a revoluble platen, means to control the line-spacing movements of said platen, means to engage the margin of a e wide sheetto hold it against said platen to 'partake exactly of the line-spacing movenected with said line-spacing means, for efments' thereof, and controlling means confecting, at the. rotative-movements of said platen, relatively reduced line-space movements of a narrow sheet interposed between said wide sheet and the platen, the line: spacing movements of said interposed narrow'sheet and of said platen being all controlled by a single manually-operable device. 36. -In a typewriting'machine, the combination of .a revoluble platen, means to co'ntrol the line-spacing movements of the platen,

means to enga e the margin of a wide sheet to hold it against the platen to partake of the line-spacing movements thereof, and controlling means connected with'said linespacing means, for efi'ecting reduced linespace movements of a narrovs sheet interposed between the wide sheet and the platen,

and including a shaft extending along the platen for line-spacing the interposed sheet,

thereof along the platen.

and means for enabling said shaft to feed said interposed sheet at various adjustments 37. In a'ty'pewriting machine, the coinbination with a revoluble'platen, of line'-' spacing mechanism having only one operating member or' driver, said platen ,con'- trolled by said line-spacing mechanism,

means to press an outer or original sheet against said'platen to cause said sheet to advance in line-space direction with said to platen at the speed thereof, and automatic means connected with said line-spacing mechanism to advance to a less extent a carbon-copy sheet inserted between said: outer sheet and the platen; said dpressing means being lateral of the inserte sheet, to bear arenot occupied by said inserted sheet.-

against only portions of the platen that I 38? In; a typewriting machine, the combination with a revoluble platen, of line-spacing mechanism having only one operating member or driver, said platen controlled by said line-spacing mechanism, means to cause.

an outeror original sheet to be driven by 1 direct contact with said platen by means of rolls pressing the side margins thereof against said platen, and means connected to said line-spacing mechanism to advance to a less extent a sheet inserted between said hold back the inner sheet against the tend.- ency of the platen to advance thesame.

40. .In atypewriting machine, the combination with a revoluble platen and a linespacing mechanism whereby said platen is controlled, of means to hold an outer sheet against the platen, a revoluble device having a connection to-said line-spacing mechanism to advance a narrow sheet interposed between the outersheet and'the platen at a less speed than the outer sheet, and means at the introductory side of the platen to hold back the inner sheet against the tendency of the 'platen to advance the'same, said hold-back means including are'voluble member tocO-act-With the sheet and a friction member to retard its revolution. I

41. In a typewriting machine, the combination with a revoluble'platen anda linespacing mechanism whereby said platen is controlled, of means to hold an outer sheet against the platen, a revoluble device hav' ing a connection to said line-spacingmech anism to advance a narrow sheet interposed between the outer sheet and the platen at a less speed than the outer sheet, and means at the introductory side of the platen to hold back the inner sheet against the tend- ,Iency of the platen to advance the same, said holdv-backmean's including a revoluble member to co-act withthe sheet and a friction member to:retard its revolution, said revoluble device and saidhold-back means being ad 'ustable together along the platen. 42. na'typewritin machine, the combination with a revolu le platen, of a linespacing mechanism therefor, a revoluble devlce extra'acentto said platen and connect ed to sai line-spacing mechanism to ada at the introductory side of the platen to- Vance a sheet around said platen to a less extent than the movement of said platen, and a pressure-device lateral to said sheet, whereby a wider sheet superposed upon said 5 sheet may be line'spaced to the same extent as said platen, said pressure device being -mounted to press only upon portions of said platen not occupied by the first-mentioned sheet.

43. In a typewriting machine, the combination with a revoluble platen, of a linespacing mechanism therefor, a revoluble device extrajacent to the platen and connected to said line-spacing mechanism to advance a sheet around the platen to a less extent than the movement of the platen, and means whereby a sheet superposed upon said sheet may be line-spaced to the same extent as the platen, said revoluble device being adjustable along the platen.

44. In a typewriting machine, the combination of a revoluble platen, a winding spool and a delivery spool both arranged to control a tally strip running directly upon the platen, means for holding upon the platen to turn therewith a sheet superposed upon the tally strip and overlapping the same, a line-spacing mechanism to advance the platen to a greater extent than the tally strip, and means to counteract the tendency of the platen to advance the tally strip unduly.

45. In a typewriting machine, the combination of a revoluble platen, a winding spool and a' delivery spool both arranged to control a tally strip running directly upon the platen, means for holding upon the platen to turn therewith a sheet superposed upon the tally strip and overlapping the same, a linespacing mechanism to advance the platen to a greater extent than the tally strip, and means to counteract the tendency of the platen to advance the tally strip unduly, said tally strip spools being adjustable along the platen.

46: The combination with a revoluble platen, of means mounted extrajacent to said "platen for advancing a narrow record sheet I around the platen in line-spacing direction,

means for giving said platen rotative movements each in excess of'the movement-of Such narrow sheet, and means lateral to said narrow sheet to press a wide sheet against said platen, to be given thereby greater linespacing movements than those of the narrow sheet, said pressing means mounted to press against only portions of said platen that are not occupied by said narrow sheet.

47. The combination with a revoluble platen, of means mounted extrajacent to the platen for advancing a narrow record sheet around the platen in line-spacing direction, means for giving the platen rotative movements each in excess of the movement of such narrow sheet, means to press a wide sheet against the platen, to be given thereby greater line-spacing movements than those of the narrow sheet, a single line-spacing mechanism being connected both to rotate said platen and advance said narrow sheet, and retarding means being provided for preventing the narrow sheet from advancing as far as the wide sheet at the line-spacing operation of the platen.

2L8. The combination with a revoluble platen, of means mounted extrajacent to the platen for advancing a narrow record sheet around the platen in line-spacing direction, means for giving the platen rotative movements each in excess of the movement of such narrow sheet, means to press a wide sheet against the platen, to be given thereby greater line-spacing movements than those of the narrow sheet, and means being provided for effecting relative adjustment of the narrow sheet and its feeding means longitudinally of the platen.

49. The combination with a revoluble platen, of means mounted extrajacent to the platen for advancing a narrow record sheet around the platen in line-spacing direction, means for giving the platen rotative movements each in excess of the movement of such narrow sheet, means to press a wide sheet against the platen, to be given thereby greater line-spacing movements than those of the narrow sheet, a single line-spacing mechanism being connected both to rotate said platen and advance said narrow sheet, retarding means being provided for preventing the narrow sheet from advancing as far as the wide sheet at the line-spacing operation of the platen, and means being also provided for silencing the feed of the narrow sheet at the operation of the line-spacing mechanism.

FREDERICK A. HART. Witnesses:

JULIUS DUoKsTmn.

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